20. A random sample of 8 professional athletes produced the following data where x is the number of endorsements the player has and y is the amount of money made (in millions of dollars).
x |
y |
0 |
1 |
1 |
1.5 |
1 |
2 |
2 |
3 |
2 |
3.5 |
3 |
3 |
5 |
6.5 |
5 |
7 |
20. A random sample of 8 professional athletes produced the following data where x is the...
A random sample of ten professional athletes produced the following data where x is the number of endorsements the player has and y is the amount of money made (in millions of dollars). x y x y 0 2 5 11 3 8 4 9 2 6 3 8 1 3 0 3 6 14 5 10 Use regression to find the equation for the line of best fit. (Round your answers to three decimal places.) ŷ = + x
for this question, could you include written work of the 1) independant and dependant variables? 2) is it reasonable to use linear regression and why? 3) what is the slope of the line best fit? 4) what is the y-intercept of ^ and what does it represent? 5) what is the linear coefficent? 6) is the linear coefficent significant and why? 7) if a professional athlete did six endorsements, what could they expect a profit according to the regression equation?...
A scientist believes that the frequency of cricket chirping is a good predictor of the ambient temperature. A random sample produced the following data where x is the number of cricket chirps in one minute and y is the ambiet temperature in Fahrenheit. x 128, 227, 188, 150, 210, 185, 137, 171 y 70, 83, 84, 76, 89, 83, 72, 80 (a) Find an equation of the least squares regression line. Round the slope and y-intercept value to two decimal...
Let x be a random variable that represents the percentage of successful free throws a professional basketball player makes in a season. Let y be a random variable that represents the basketball player makes in a season. A random sample of n = 6 professional basketball players gave the following information. 75 86 73 73 44 3948 51 (a) Verify that Ex - 438, 2y = 277, 2x2 = 32264, y = 12899, Exy = 20365, and r * 0.803....
In this assignment, you will be using a regression tree to analyze some data about contract negotiations. Athlete Contract Negotiations (regression tree). Casey Deesel is a sports agent negotiating a contract for Titus Johnston, an athlete in the National Football League (NFL). An important aspect of any NFL contract is the amount of guaranteed money over the life of the contract. Casey has gathered data on 506 NFL athletes who have recently signed new contracts. Each observation (NFL athlete) includes...
Name Economics 5 Ch 13 Practice The follo wing data are the monthly salaries y and the grade point averages x for students who obtained a bachelor's degree in business administ ration Obser vation index xi 2.6 3300 3.4 3600 3.6 4000 3.2 3500 3.5 3900 2.9 3600 TSS Totals SSR SSE 1. Calculate and y 2. Use the least squares method to develop the estimated regression equation. Use two decimal points in your answers for bo and bi. 3....
Question 1 Which of the following choices best describes the scatterplot shown below? Group of answer choices Linear, negative, strong No form, weak Linear, positive, strong Curved, weak Question 2 Which of the following choices is most likely to be the correlation of the data in the scatterplot shown below? Group of answer choices -0.14 1.04 0.86 -0.92 Question 3 Most roller coasters get their speed by dropping down a steep initial incline, so it makes sense that we can...
QUESTION 2 Following scatter plot represents a sample of paired X and Y values. Which of the listed values of the linear correlation coefficient r is most likely to represent the given scater plor? r= -0.711 r= 0.667 r= 0.099 r= -0.018 and submit. Click SSare All Anscers to suce all ansers 13 14 Find the 99% confidence interval for the mean time it takes for conducting a job interview for a position of a retail associate in a supermarket...
Data Graphing (version B) First Name Last Name The following data were collected of a running rabbit: Distance (m) Time (s) 10.41 2.00 13.51 5.00 16.60 8.00 19.72 11.0 22.79 14.0 (Give all answers in 3 SF) 1) Analyze the changing pattern of the time and distance, figure out which property is the independent variable? 2) Prepare a linear graph with distance as they axis and time as the x axis. Don't graph with your calculator or computer. You should...
In the United States, tyre tread depth is measured in 32nds of an inch. Car tyres typically start out with 10/32 to 11/32 of an inch of tread depth. In most states, a tyre is legally worn out when its tread depth reaches 2/32 of an inch. A random sample of four tyres provides the following data on distance driven and tread depth: Distance driven Tread Depth (32nds of an inch) Tyre (10,000 kilometres) 2 3 4 4 4 4...